The intensity dependent refractive index change of photochromic proteins

被引：10
|
作者：
Leppanen, VP
Haring, TJ
Jaaskelainen, T
Vartiainen, E
Parkkinen, S
Parkkinen, JPS
机构：
[1] Univ Joensuu, Dept Phys, FIN-80101 Joensuu, Finland
[2] Lappeenranta Univ Technol, Dept Informat Technol, FIN-53851 Lappeenranta, Finland
来源：
OPTICS COMMUNICATIONS | 1999年 / 163卷 / 4-6期
关键词：
D O I：
10.1016/S0030-4018(99)00141-8
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report the nonlinear refractive index behaviour of bacteriorhodopsin and photoactive yellow protein films. A Michelson interferometer with a probe and excitation beams was used in the measurements. By using this technique instead of the Z-scan we can easily separate the index change caused by photochromism and the thermal expansion. Sigmoidal index changes in the logarithmic intensity scale were observed. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：189 / 192
页数：4
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